1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
goblinko [34]
3 years ago
9

I Science Sem 1

Physics
1 answer:
Sonbull [250]3 years ago
7 0

Answer:

Force, F = 124 N

Explanation:

We have,

Mass of bicycle is 12 kg and mass of rider is 50 kg

Total mass of the system is 12 kg + 50 kg = 62 kg

Acceleration of the system is 2 m/s²

It is required to find the force required to accelerate the system. The force acting on an object is given by :

F=ma\\\\F=62\ kg\times 2\ m/s^2\\\\F=124\ N

So, the force of 124 N is acting on the system.  

You might be interested in
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is
maksim [4K]
D = v^2 / 2ug

d=  3.5^2 / 0,15 x 9.8 m/s^2

the answer should be around 4.2m

hope this helps
8 0
2 years ago
A solenoid of length 10 cm has 247 turns and a magnetic field at the center of 1.2 T. What is the current through the solenoid?
elena55 [62]

Answer:

386.6 A

Explanation:

We are given;

Solenoid length; L = 10 cm = 0.1 m

Number of turns; N = 247

Magnetic field; B = 1.2 T

Now, at the centre of a long solenoid of N turns/metre carrying a current(I), the formula for the magnetic field is given as;

B = μ_oNI/L

Making I the subject we have;

I = BL/μ_oN

Where μ_o is the vacuum of permeability and has a constant value of 4π × 10^(−7) H/m

Thus;

I = (1.2 × 0.1)/(4π × 10^(−7) × 247)

I = 386.6 A

6 0
2 years ago
The primary difference between a barometer and a manometer is
Nitella [24]

Answer:

a barometer is used to measure atmospheric pressure, and a manometer is used to measure gauge pressure.

Explanation:

A barometer measures air pressure at any locality with sea level as the reference.

However, a manometer is used to measure all pressures especially gauge pressures. Thus, if the aim is to measure the pressure at any point below a fluid surface, a barometer is used to determine the air pressure. The manometer may now be used to determine the gauge pressure

The algebraic sum of these two values gives the absolute pressure.

4 0
3 years ago
100 meters toward the shore in 25 seconds
Rzqust [24]

Answer:

The speed of a turtle is 4m/s

Explanation:

speed = distance/time

distance = 100m

time = 25s

s = 100/25

= 4m/s

6 0
3 years ago
When u step on the brakes what energy transformation takes place describe the transformation
larisa [96]
Before you step on the brakes, the car has kinetic energy, when you step on the brakes, it turns the kinetic energy into heat (thermal energy). When it stops completely, it has potential energy. Hope this helped :)
5 0
3 years ago
Other questions:
  • When the outermost energy level of an atom is full it tends to be?
    6·2 answers
  • The graph shows how the vertical velocity of a parachutist changes from the moment the parachutist jumps from the aircraft until
    7·1 answer
  • What is the efficiency of the machine in Figure 7.2 if the weight of the box is 200 N and required 98 N of effort Force?
    13·1 answer
  • If an object gains an additional 5 m/s of speed every second, the object is?
    8·2 answers
  • At a certain depth in the ocean. the absolute pressure is p. If you 90 to twice that depth (treating the water as incompressible
    12·1 answer
  • If a car with a mass of 5Kg, has a momentum of 25kgm/s, how fast is it travelling?
    6·2 answers
  • Pam, with a mass of 40.4 kilograms, straps on a rocket pack while wearing her roller blades. The rocket supplies a constant forc
    8·1 answer
  • More facts about mental health
    15·1 answer
  • boat travels through a river at a speed of 25 m/s, passing through schools and opening the soundtrack. One student measured freq
    6·1 answer
  • Hello people~
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!